345804328 has 8 divisors (see below), whose sum is σ = 648383130. Its totient is φ = 172902160.

The previous prime is 345804289. The next prime is 345804367. The reversal of 345804328 is 823408543.

It is an interprime number because it is at equal distance from previous prime (345804289) and next prime (345804367).

It can be written as a sum of positive squares in only one way, i.e., 287709444 + 58094884 = 16962^2 + 7622^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21612763 + ... + 21612778.

Almost surely, 2^345804328 is an apocalyptic number.

It is an amenable number.

345804328 is a deficient number, since it is larger than the sum of its proper divisors (302578802).

345804328 is a wasteful number, since it uses less digits than its factorization.

345804328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43225547 (or 43225543 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 345804328 is about 18595.8147979592. The cubic root of 345804328 is about 701.9025305485.

The spelling of 345804328 in words is "three hundred forty-five million, eight hundred four thousand, three hundred twenty-eight".